release/src-rt-6.x.4708/linux/linux-2.6.36/fs/coda/sysctl.c

   1 /*
   2  * Sysctl operations for Coda filesystem
   3  * Original version: (C) 1996 P. Braam and M. Callahan
   4  * Rewritten for Linux 2.1. (C) 1997 Carnegie Mellon University
   5  *
   6  * Carnegie Mellon encourages users to contribute improvements to
   7  * the Coda project. Contact Peter Braam (coda@cs.cmu.edu).
   8  */
   9
  10 #include <linux/sysctl.h>
  11
  12 #include "coda_int.h"
  13
  14 #ifdef CONFIG_SYSCTL
  15 static struct ctl_table_header *fs_table_header;
  16 #endif
  17
  18 static ctl_table coda_table[] = {
  19         {
  20                 .procname       = "timeout",
  21                 .data           = &coda_timeout,
  22                 .maxlen         = sizeof(int),
  23                 .mode           = 0644,
  24                 .proc_handler   = proc_dointvec
  25         },
  26         {
  27                 .procname       = "hard",
  28                 .data           = &coda_hard,
  29                 .maxlen         = sizeof(int),
  30                 .mode           = 0644,
  31                 .proc_handler   = proc_dointvec
  32         },
  33         {
  34                 .procname       = "fake_statfs",
  35                 .data           = &coda_fake_statfs,
  36                 .maxlen         = sizeof(int),
  37                 .mode           = 0600,
  38                 .proc_handler   = proc_dointvec
  39         },
  40         {}
  41 };
  42
  43 #ifdef CONFIG_SYSCTL
  44 static ctl_table fs_table[] = {
  45         {
  46                 .procname       = "coda",
  47                 .mode           = 0555,
  48                 .child          = coda_table
  49         },
  50         {}
  51 };
  52 #endif
  53
  54 void coda_sysctl_init(void)
  55 {
  56 #ifdef CONFIG_SYSCTL
  57         if ( !fs_table_header )
  58                 fs_table_header = register_sysctl_table(fs_table);
  59 #endif
  60 }
  61
  62 void coda_sysctl_clean(void)
  63 {
  64 #ifdef CONFIG_SYSCTL
  65         if ( fs_table_header ) {
  66                 unregister_sysctl_table(fs_table_header);
  67                 fs_table_header = NULL;
  68         }
  69 #endif
  70 }